Fool's Gold (An Apache / Cuchillo Oro Western #12‪)‬

The Doubleday brothers had left him, brutally beaten, to die In the desert. Somehow, Cuchillo survived, and swore to avenge the vicious attack. Andy was the first to feel the thrust of the Indian’s fabled golden knife … Stan was next .…
As he faced his avowed enemy, Cuchillo knew that his life trembled on the edge of a knife. Moving very slowly he put his right hand into the pocket of his trousers and pulled out the coins. With a wide sweep of the hand, the Apache warrior opened his fingers, revealing the golden glint of the money, the last rays of the sun making them sparkle and glitter in his hand.
Now the white man would pay for his mistake—and the legendary Hernando’s gold could claim its last victim. For Cuchillo Oro, this was sweet, savage revenge—worth more than the treasure he had risked his life to find.